Combined front-cylinder-head and cross-head supporting frame for steam and power air-compressors.



115J- 797,519. PATBNTED'AUG. 15, 1905.,

l 1.l G. LEYNER.

COMBINED FRONT CYLINDER HEAD AND CROSS HEAD SUPPORTING FRAME EUR STEAMAND POWER AIR OOMPRESSORS.

APPLICATION FILED SEPT.2, 1903.- 3 SHEBTS SHEBT l v 1 111 1111 g l l 1 iJ 1+ y! A# 1;.

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No. '797,59. PATENTED AUG. l5, 11905. I. G. LEYNBR.

GOMBNBD FRONT CYLINDER HEAD AND GROSS HEAD SUPPORTING FRAME FOR STEAMAND POWER AIR CMPRESSURS.

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No. 797,519. PATENTED AUG. 15, 1905. J. G. LEYNER. COMBINED FRONTCYLINDER HEAD AND GROSS HEAD SUPPORTING FRAME POR STEAM AND POWER AIROOMPRESSORS.

APPLICATION FILED SEPT, 2, 1903. 3 SHEETS SHBBT ab p sirnfrnsyPATENT'OFFIGE JOHN GEORGE LEYNER, OF DENVER, COLORADO.

COMBINED FRONT-CYLlNDER-HEAD, AND CROSS-,HEAD SUPPORTING FRAME FOR STEAMAND POWERAIR- COMPRESSORS.

Specification of Letters Patent.

Patented Aug. 15, 1905.

Original application led October 1, 1902, Serial No. 125,539. Dividedand this application filed September 2, 1903. Serial No. 171,626.

To all whom. it may concern:

Be itknown that l, JOHN GEORGE LEYNER, a citizen of the United States ofAmerica, residing in the city and county of Denver and State ofColorado, have invented certain new and useful Improvements in aCombined Front-Oylinder-Head and Cross-Head Supporting Frame for Steamand Power Air-Oompressors; and I do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to thefigures of reference marked thereon, which form a part of thisspecilication. f

This invention relates to improvements in air-compressors, and relatesto a combined front-cylinder-head and cross-head supporting frame forsteam and power air-compressors, and especially for compressors of thetype described and set forth in an application filed by me on October 1,1902, bearing Serial No. 125,539, and of which this present applicationis a divisional part.

The object of this invention is to provide a strong and rigid connectionbetween the aircompressing cylinder and the operating steamcylinder insteam-driven air-compressors4 or in power-driven air-compressors, suchas belt or electric or water power driven air-compressors, which willinterpose the required resistance in a direct line against the strainexerted between them.

A further object is to provide a connection of this character which isso constructed that one of its ends shall form the front cylinderheadfor the adjacent end of the air-compressing cylinder, whileits other endforms the head for the adjacent end of the operating steamcylinder whensteam is used as the motive power for the compressor, or is connected tothe supporting-pedestal of the driving end of power-drivenair-compressors, the said connection or long-distance piece also actlngas a supporting-frame for the guideways of the i cross-head of thepiston-rod.

I attain these objects by the mechanism illustrated in the accompanyingdrawings, in which l have preferabl)7 illustrated my inventionespecially adapted to steam-driven air-compressors, and in whichA Figure1 is a longitudinal sectional view through a portion of anair-compressing cylinder and an operating steam-cylinder, showing thelong-distance piece connecting` the two cylinders. Fig.- 2 is alongitudinal sectional view through the long-distance piece detached.Fig. 3 is a view looking from the under side thereof. Fig. 4 is atransverse v sectional view thereof on the line 4 4 of Fig.

2. Eig. 5is a transverse sectional view on the line 5 5 of Fig. 2, andFig. 6 is a transverse sectional view on the line 6 6 of Fig. 2.

Referring to the accompanying drawings, the numeral 1 indicates anair-compressing cylinder, and 2 a bed-plate to which the cylinder isbolted. This cylinder is of the type illustrated and described in theapplication for a patent above referred to, and only a portion of it ishere illustrated in order to clearly show the application of my presentinvention thereto. This cylinder is counterbored at its end, as shown at3, and is surrounded by a water-jacket 4, at each end of which is anairspace 5 surrounding' the cylinder, said airspaces being connected bygroups of air-pipes 6 and 7. Holes 8 connect the cylinder with theair-spaces, and these holes are normally closed by spring-actuatedvalves 9.

, rl'he numeral 1() refers to the cylinder of a suitable actuating'steam-engine, only a fragment of which is illustrated, and thelong-distance piece which constitutes my present invention connectsthese two cylinders, its ends .being formed into suitable heads, whichlit one upon the air-compressing cylinder and one upon the cylinder ofthe steam-engine. This distance-piece comprises an air-cylinder head 11and a steam-cylinder head 12, and these heads are connected by suitableintegral connecting-bars 13, which in cross-section are formed on thearc of a circle concentric with the axes of the cylinder-heads, whichconstruction enables them to withstand greater longitudinal strain orpressure, and they are further strengthened by having their edges bentat an angle to form longitudinal ribs let, which extend the entirelength of the bars. Integral webs 15 are formed at the steamcylinder endof the bars and extend about half the length of said bars, and thesewebs give additional rigidity to the bars. The distance-piece is thusconstructed to withstand even a greater strain than is ever exerted uponit during the operation of compressing air. The air-cylinder head 11 iscast hollow in order to provide an air-space 16, and an annularprojection 17 is formed on its front face, which fits within thecounterbore of the cylinder, and the head is secured to the cylinder bybolts 18, which pass through a circular series of holes 19 near thecincumferencenof the head and into the wall `ofthe water-jacketsurrounding the cylinder. f

An integral hub portion 20'is formed in the axial center of the airspace16, which is bored to receive a suitable stuHng-box 21, and around thishub and conci'e'ntricV toits axis the Walls of the -head are provided`with a plurality of holes 22, which are within the radius of theannularvprojection 1.7,and these holes are designed. tofreceive.suitable lair-inletvalves 23, which-forma corninunicationbetween theairfspace. 16 and the'intenior ofthe air-compressing,cylinder.;Integralstrengtheningryribs and studs 24 and25, respectively, extendfrom vone wall vof .the head to the other and serve Ito bracethewalladjacentfto the cylinder against thepressureexertedupon it by thecompressed aininthecylinder. fThe air-space 16is1connected, byopenings26With anair-openingy 2Z,formed; in the bed-plate",- whichin turnconnects with a vconduit 28, formed in the foundation29, and.wl'iichopens into the atmosphere,`1 f The connecting-*bars 13 extendVfrom diarnetricallyopposite points on the heads,and,when-,thedistance'piece is secured tothe cylinders :the barsareposi'` tioned vone abovejfthe-` other.` y'lheQs'team-,cylinder head `12of, ,the distancefpiece isforined withan annular projection x30, whichextends into the cylinder 10 of the operating steamjengine, and a. borevisfnrmed, inthe axialv center of this head, which, is designedito re-Yceivera suitablestuiing; bOX 3,2-l 1 lThis headu 12 is secured to the'.ystearn .-Icylinderfby bolts which passthroughtlcholes'33in the head andinto. the ange olthewcylinder in the usual manner. l At diametnicallyopposite points on they heads l1 and IQ andmidw'ayfbctween theconnectingfbars"I l3-vare iformedin-f tegral lugs 34` and 35,respectivelywhich pro'- ject a suitable distancefrorn the heads-and areprovided with vertical holes :36 and 37 .Y The lugs on the lsame sideofk each headaregin di-y rect alinement witheachiother-f and are pro-yvided a suitable distance trom their ends with vertical shoulders 38.yand 39, betweenvwhich and the ends ofthe lugs the holes 36 and 37 areformed. To theOppositelyrdisposed llugs on each side of the head :aresecuredfa pair of guides 40 by boltsAl,l which pass through` holes inthe endsot the guides and through the holes in the. lugs, @the endsr of,the 1guides abutting against the shoulders 38 and 39 onf lugs. Theguides'supportacross1head 42, to

which is ,threadedi a stwo-partpiston-rod 43, n l one end of whichextendsthrugh-the stuiingbox in head 1l. and intoltheairfcylinden'ivhere it is provided with a suitable piston, while theother endenters the steam-cylinden asshown.

The device herein described presents a'strong and compact connectionbetween the air-compressing cylinder and the cylinder ot' theactuatingengine and is sirnple and cheap in construction.

Having'fully describedrthe invention, what I claim as new, and desire tosecure by Letters Patent, is,-` 1. A device of the character describedconsisting of an integral casting comprising a pair y.of suitablyconstructed and oppositely ar- Vwhich is `formed with an interiorair-space, a

bore in the axial center of each head, said bores being in axialalinement with each other, alcircu'lar 4series of holes through the headhaving theair-space which are concentric with its centralborejntegralbrace-bars which connect the two heads; and lugs'on-oppositesides of,each head, and guideways which connect I the lugs on one head with thoseon the opposite head, substantially as shown.

deviceof the character described, consisting of an integral castingcomprisinga pair of opposit'ely-'arranged cylinder-heads, which arelconnected 'by' integral brace-bars, an air- 'space yinoneof said heads,an integral hub in vsaid air-space in the axial center of said head, abore through said hub, a circular series of holes through said headconcentric with the boreandair-passages connecting said airspacewithrthe atmosphere; a bore in the opposite head in axial alinement withthe abovementioned bore; and lugs on opposite sides of. eachcylinder-headvand guideways connectving the `lugs on one cylinder-head,with those on the-oppos`ite head, substantially as shown.

4. A deviceiof the character described consisting of an integral castingcomprising a pair Of oppositely-arranged cylinder-heads, one of which isJformed with an interior annular airspace surrounding a central hubportion; brace-bars connecting said heads, which in vcross-section areformed on the arc of a circle concentric-with the axis of the head,their edges being formed into depending longitudinal ribs; a borethrough the hub of one head; a 'circular series of holes through theWalls of said head concentric with its bores, and airpassages,connecting lsaid interior air-space with the atmosphere; a bore in theopposite head in axial alinement 'with the above-inentioned bore; andlugs on opposite sides ot' each :head and'guidewa'ys connecting the lugsy on one head with those on the other head, substantially as shown.

5. The combination with an air-compressing cylinder and the cylinder ofan actuating-en gine of a distance-piece connecting the two cylinders,consisting' of an integral casting conlprising oppositely arrangedcylinder heads which are united by brace-bars, one of said heads beingsecured upon the air-compressing cylinder and having' an interiorannular airspace which connects with the interior of said cylinder andwith the atmosphere, while the opposite head is secured upon thecylinder of the actuating-engine, a bore through the center of eachhead, said bores being in axial alinement with each other; and lugs onoppo site sides of each head and guideways securedA upon and connectingthe lugs on one head with those upon the other head, substantially asshown.

6. The combination with an air-compressing cylinder and, the cylinder ofan actuating-engine of a distance-piece connecting the two cylindersconsisting of an integral casting comprising a pair ofoppositely-arranged heads which are united by suitable brace-bars, oneof said heads being bolted to the steam-cylinder, while the other headis bolted to the aircornpressing cylinder, said air-cylinder head beingformed with an interior annular airspace which surrounds a central hubportion, and with air-passages connecting said air-space with theatmosphere; an axial bore through the steam-cylinder head, an axial borethrough the hub portion ofthe air-cylinder head, said bores being inalineinent, a circular series of holes through the walls of theair-cylinder head, concentric with its axial bore,rsuitable valves insaid holes which control the communication between the annular air-spaceof the cylinder-head and the interior of the air-cylinder; lugs onopposite sides of each cylinder and guideways secured to and connectingthe lugs on one cylinder with those on the other cylinder, substantiallyas shown.

7. The combination with an air-compressing cylinder, the cylinder of anactuating-engine,

and a piston-rod common to both cylinders which is provided centrallywith a cross-head, of a distance-piece connecting the two cylinders,consisting of an integral casting coinprising a pair ofoppositely-arranged heads which are united by brace-bars, one of saidheads being bolted to the cylinder of the actuating-engine, while theother head is bolted to the air-compressing cylinder, said latter headbeing formed with an interior annular Vair-space which communicates withthe atmos- 'air-cylinder head, concentric with its axial bore, andvalves in said holes which control the communication between theairspace oli' said head and the interior of the air-compressingcylinder, substantially as shown.

8. .In an air-compressor, the combination with the cylinder of thelong-distance piece consisting of an integral casting comprising thefront cylinder-head of said cylinder at one end, the iiange end at itsopposite end, the intermediate arms, the guideways secured to saidlong-distance piece, the cross-head slidably supported in saidguideways, the pistonrod secured to said cross-head and connected tosaid cylinders piston and the stuiing-box in said cylinder-head of saidlong-distance piece operatively arranged around said pistonrod,substantially as described.

9. In an aircom[ )ressor, the combination with the cylinder and thepiston of the longdistance piece consisting of an integral castingcomprising the front cylinder-head of said cylinder, and theoppositely-disposed arms extending from said c yflinder-head to aflanged head portion at its opposite end and adapted to be connected toany suitable power mechanism, the guideways, the cross-head and thepiston-rod operatively supported by said longdistance piece, thestutling-box in said cylinder-head in communication with the atmosphere,and the circular row of air-inlet valves arranged and adapted to admitair from said air-compartments to said cylinder during said cylindersrearward stroke, substantially as described.

In testimony whereof I ailix my signature in presence of two witnesses.

JOHN GEORGE LEYNER.

Witnesses:

CLARENCE A. LAWSON, LUTHER H. VVYGANT, Jr.

